package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.entity.SetmealDto;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

@RestController
@Slf4j
@RequestMapping("/setmeal")
@Api(tags = "套餐相关接口")
public class SetmealController {

    @Autowired
    private SetmealService setmealService;

    @Autowired
    private CategoryService categoryService;

    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    @ApiOperation(value = "新增套餐接口")
    public R<String> save(@RequestBody SetmealDto setmealDto) {
        log.info("[新增套餐 dto:{}]",setmealDto);

        setmealService.saveWithDish(setmealDto);
        return R.success("保存成功");
    }

    //套餐分页查询
    @GetMapping("/page")
    @ApiOperation(value = "套餐分页查询接口")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "page",value = "页码",required = true),
            @ApiImplicitParam(name = "pageSize",value = "每页记录数",required = true),
            @ApiImplicitParam(name = "name",value = "套餐名称",required = false)
    })
    public R<Page> page(Integer page,Integer pageSize,String name) {
        log.info("[套餐的分页查询 page:{},pageSize:{},name:{}]",page,pageSize,name);
        //分页构造器对象
        Page<Setmeal> pageInfo = new Page<>(page, pageSize);

        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(name != null,Setmeal::getName,name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);
        setmealService.page(pageInfo,queryWrapper);

        //对象copy
        Page<SetmealDto> dtoPage = new Page<>();
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();
        List<SetmealDto> stream = records.stream().map((item) ->{
                    SetmealDto setmealDto = new SetmealDto();
            //对象拷贝
            BeanUtils.copyProperties(item, setmealDto);
            //根据分类id查询分类对象
            Category category = categoryService.getById(item.getCategoryId());
            setmealDto.setCategoryName(category != null ? category.getName() : "");
            return setmealDto;
        }).collect(Collectors.toList());
        dtoPage.setRecords(stream);
        return R.success(dtoPage);
    }

    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    @ApiOperation(value = "套餐删除接口")
    //套餐批量删除
    public R<String> deleteWithIds(@RequestParam List<Long> ids) {
        log.info("[批量删除套餐]，{}", Arrays.toString(ids.toArray()));
        setmealService.deleteWithIds(ids);
        return R.success("批量删除成功");
    }

    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId+'_'+#setmeal.status")
    @ApiOperation(value = "套餐条件查询接口")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null,Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null,Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);
        return R.success(list);
    }
}